After talking to multiple sources last night, I can tell you that the Nuggets and Sixers have had conversations about an Iverson deal.
Also, just because Karl said "He wouldn't get any sleep," if they traded for Iverson, he's the coach and not the GM. I've talked to the front office, and they are definitely making a play for A.I. Remember, Karl didn't want the team to bring back Reggie Evans because of all the potential headaches that might give him with so many front-court players . . . and the front office did it anyway.
Here's the link to the article about the conversations Denver and Philly have had recently:
http://www.hoopsworld.com/article_19821.shtml